News Release

Feb 21, 2007

PDF Version

Carmacks Copper Project: Assay Results Complete from 2006 Drilling Program

VANCOUVER, BRITISH COLUMBIA – Western Copper Corp. (TSX: “WRN”) (“Western”) announces further diamond drilling results from its Carmacks Copper Project in the Yukon, Canada.

The results are for two holes in the No.1 Zone and five holes in the newly discovered No. 13 zone. The No. 1 Zone holes are infill holes drilled down dip to better define the transition zone between copper oxides and sulphides. These holes confirmed a transition from oxide to sulfide mineralogy at a depth of 220 m as well as the continuity of sulphide mineralization to a total downhole depth of 547 m.

In addition to sulphide mineralization also identified in previous drill results, the No. 13 Zone results identified some shallow oxide mineralization. No. 13 Zone oxide material, with additional definition drilling, may prove feasible to mine in conjunction with the company’s planned copper oxide development of the No. 1 Zone.

A 10,000 metre diamond drilling program is scheduled to commence in the spring of 2007 and will further test the No. 13 Zone, the No. 12 Zone to the south of the 13 Zone and the 2000 Zone to the north of the 13 Zone.

Mr. Dale Corman CEO and Co-Chairman of Western, comments. “We are very pleased with the progress that is being made at our Carmacks project. The project feasibility study is scheduled for completion at the end of March and permitting of the project is moving forward on an orderly schedule”.

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Jim Marlow, P.Eng., is the qualified person responsible for the planning and execution of the Carmacks property exploration program and the preparation of the technical information in this news release.

QA/QC including assurance of chain of custody has been implemented in accordance with industry best practices. Split core samples are prepped and analyzed by ALS Chemex. Prepped samples are initially run using an aqua regia digestion process and conventional multi-element ICP-AES analysis. Additional assaying for total copper is run using a 4 acid digestion – AAS method to a 0.01% detection limit. Non-sulfide copper assays are run using weak-acid digestion – AAS method to a 0.001% detection limit. Gold assays are run using 30 gram sample fire assay with an AA finish to a 0.005 ppm detection limit. A series of property specific duplicates are routinely submitted, and check assaying is implemented at regular intervals.

On behalf of the board,

"Dale Corman"

F. Dale Corman
Chairman & CEO
Western Copper Corporation

For more information, please contact:

David Jensen - VP, Corporate Development
Nicole Rizgalla - Investor Relations

Call: 1.888.966.9995 or 604.684.9497
Email: .(JavaScript must be enabled to view this email address)

Cautionary notes:

This press release includes certain "Forward-Looking Statements" within the meaning of section 21E of the United States Securities Exchange Act of 1934, as amended. All statements, other than statements of historical fact, included herein, including without limitation, statements regarding potential mineralization and reserves, exploration results and future plans and objectives of Western Copper Corp. are forward-looking statements that involve various risks and uncertainties. There can be no assurance that such statements will prove to be accurate and actual results and future events could differ materially from those anticipated in such statements.

Notice to US Investors

The United States Securities and Exchange Commission permits U.S. mining companies, in their filings with the SEC, to disclose only those mineral deposits that a company can economically and legally extract or produce. We use certain terms on this news release, such as “measured,” “indicated,” and “inferred” “resources,” that the SEC guidelines strictly prohibit U.S. registered companies from including in their filings with the SEC. U.S. investors are urged to consider closely the disclosure in Western’s Form 20-F, File No. 000-52231, which may be secured from the Company, or from the SEC’s website at http://www.sec.gov/edgar.shtml.